i486 - x86_64

i486 is the 32-bit version and x86_64 is the 64-bit version for x86 Intel compatible processors. The x86_64 version has additionally to the 64-bit binaries also
the 32-bit LibC version. This version can run 32-bit and 64-bit programs. The x86_64 version has also a multiarch Gnu C compiler (GCC) to compile 32-bit and 64-bit programs.

ARM

The ARM version is compiled for armv6l and comes with a modified Kernel to boot from a Raspberry Pi. LILO, GRUB, Syslinux, Blender and Firefox are not available in the ARM version.
All other programs are the same as for i486/x86_64. The lightweight browser Midori is used as replacement for Firefox.